export {}
let add=(a:number,b:number):number=>{
    return a+b
}
let div = document.getElementById("div") // lib属性演示

//通过 npm install -D @types/node
//npm install -D @types/undici
import fs from "fs"
console.log(fs);

//npm i -D @types/md5
import md5 from "md5"
let res1 = md5("hello");
console.log(res1);


export {}
